I'm so glad they found a way - a real, congruent way, I mean - to bring back Frodo, and perhaps more of the other young Hobbits, etc, to introduce this story!... And my own feeling is that PJ & Co are doing it quite deliberately, not to please anyone but themselves first of all: during the 18 months spent together for the three LOTR films, most of the actors and everyone else had bonded so deeply and were so happy working together, and the parting in the end has been so emotionally difficult (those filmed last moments in the ROTK EE supplements still bring tears to my eyes), I feel they are simply bringing them back together, as many of them as can possibly be done realistically - even if it is for a short while only. If the suits too are pleased, fine, but I don't see it as the primary motivation. And PJ & team know that many of the fans will, like me, be overjoyed too!... 'Is everything sad going to come untrue?' (Sam, 'The Field of Cormallen', in 'The Return of the King'.)